Clinical trials are research studies conducted with patients or with healthy people. They are designed to answer specific questions about the effectiveness of new ways to prevent, detect, diagnose, and treat cancer. It is through clinical trials that the greatest amount of information has been learned about cancer treatments presently being used. Clinical trials provide a way to evaluate the safety and effectiveness of a promising new treatment or further evaluate standard treatments so that better treatments may become available. Today’s clinical trials lead to tomorrow’s standard of care.